Aprecision tubing manufacturer has been awarded a Nadcap accreditation for chemical processing. This is the fourth Nadcap approval awarded to Fine Tubes; its first accreditation was for heat treating in 2004, followed by nondestructive testing (ultrasonic testing) in 2005 and fusion welding in 2013. In addition, the Plymouth (UK)-based manufacturer anticipates receiving another accreditation for fluid distribution systems shortly.

Nadcap is an internationally recognised accreditation system that covers the key manufacturing and production processes used within the aerospace industry.

Very few companies hold four Nadcap accreditations simultaneously.

Chemical processing is a critical part of the Fine Tubes production process. Tubes must be chemically milled after the cold-working and heat-treating manufacturing processes, by being etched to ensure they meet the customer specification requirements.

“The tubing we manufacture is designed to withstand in-process fatigue loading, and failure is not an option.  When aircraft manufacturers need tubing, they inevitably look for suppliers who can demonstrate the most-stringent quality standards. Nadcap accreditation is widely viewed as confirmation of that, and, so with every Nadcap accreditation that we earn, we further enhance our ability to win new contracts,” comments David Killoran, representing the Fine Tubes’ technical team.

To achieve its latest accreditation, Fine Tubes undertook an intensive on-site inspection and investigation by a Nadcap auditor. This audit covers all aspects of the process – the machinery, consumables, and methods employed, as well as the qualifications and experience of the staff involved in the process.

“The auditor found no failures to comply with the Nadcap criteria, and that is a major credit to the Fine Tubes production team involved in the audit,” said Dr. Abdul Saeid, Process Engineer at Fine Tubes.

Fine Tubes and its US-based sister company, Superior Tube, are units of AMETEK Specialty Metal Products and both have supplied the aerospace industry with high-performance tubes for more than fifty years. Their precision tubes are used in airframes, aircraft engines and aerospace instrumentation, where they are relied upon to withstand the most-critical operating conditions.

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